powerpc: Simplify param.h by including <asm-generic/param.h>

Signed-off-by: NRobert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/include/asm/param.h

-#ifndef _ASM_POWERPC_PARAM_H
-#define _ASM_POWERPC_PARAM_H
-
-#ifdef __KERNEL__
-#define HZ		CONFIG_HZ	/* internal kernel timer frequency */
-#define USER_HZ		100		/* for user interfaces in "ticks" */
-#define CLOCKS_PER_SEC	(USER_HZ)	/* frequency at which times() counts */
-#endif /* __KERNEL__ */
-
-#ifndef HZ
-#define HZ 100
-#endif
-
-#define EXEC_PAGESIZE	4096
-
-#ifndef NOGROUP
-#define NOGROUP		(-1)
-#endif
-
-#define MAXHOSTNAMELEN	64	/* max length of hostname */
-
-#endif	/* _ASM_POWERPC_PARAM_H */
+#include <asm-generic/param.h>